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x^2 - kx + 4 = 0 apply the discriminant formula a = 1 , b = -

**k**,**c**= 4 b^2 - 4ac = 0 (-k)^2 - 4(1)(4) = 0 k^2 - 16 = 0 k^2 = 16 k = √(16) k = 4 answer// x^2 - 4x + 4 = 0 (x - 2)(x - 2) = 0 x = 28 Answers · Science & Mathematics · 19/05/2019

... Group I elements (Li+, Na+,

**K**+,**Cs**+, Rb+) are soluble . There are few exceptions...1 Answers · Science & Mathematics · 26/05/2019

... Group I elements (Li+, Na+,

**K**+,**Cs**+, Rb+) are soluble . There are few exceptions...1 Answers · Science & Mathematics · 05/06/2019

...atm is the atmospheric concentration, we would model this as: dC(t)/dt = -

**k***(**C**(t) - C_atm) where k is some positive rate constant. Note that the...2 Answers · Science & Mathematics · 06/08/2019

Rules (−k)^2/a^2 - (x-h)^2/b^2 = 1 , c = √(a^2+b^2) vertices (h , k+a) and (h , k-a) Foci (h ,

**k**+**c**) and (h ,**k**-**c**) the asymptotes y - k = ±(a/b)(x-h)1 Answers · Science & Mathematics · 13/05/2019

To watch it's professional football, but only when the

**K**.**C**. Chiefs are playing.13 Answers · Entertainment & Music · 08/11/2018

...and F(h+c, k) ii/ if b>a --->c = √( b^2 - a^2) then F(h ,

**k**-**c**) and F(h ,**k**+**c**)1 Answers · Science & Mathematics · 27/11/2018

...q is a positive integer and p < q) Therefore n - (n-

**k**) =**c**(q-p) ... q-p becomes a positive integer**k**=**c**(q-p) So c is...1 Answers · Science & Mathematics · 26/09/2018

...k±a) length of major axis = 2a co-vertices (h±b,k) foci (h,

**k**±**c**), c² = a²-b² Apply your given information...4 Answers · Science & Mathematics · 29/05/2019

... order...... FALSE. The reverse reaction is Rate =

**k**[**C**][D] and is second order overall. 4) The activation energy for...1 Answers · Science & Mathematics · 15/10/2018